Mazda CX-5 Service & Repair Manual: Camshaft Position (CMP) Sensor Inspection
Intake CMP Sensor
Visual inspection
CAUTION:
-
When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control.
1. Remove the intake CMP sensor..
2. Verify that there are no metal shavings on the intake CMP sensor.
-
If there is a malfunction, remove any metal shavings that are adhering.
Voltage inspection
CAUTION:
-
When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control.
-
If the wiring harnesses or waterproof connectors are damaged, water penetrating the connector will cause a sensor malfunction. To prevent this, be careful not to damage wiring harnesses or waterproof connectors.
1. Idle the engine.
2. Measure the intake CMP sensor output voltage using the oscilloscope.
-
If not as specified, replace the intake CMP sensor..
|
Terminal |
Voltage (V) |
Condition |
|
A |
Above 4.8 |
High output* |
|
Below 0.8 |
Low output* |
|
|
B |
Below 1.0 |
Under any condition |
|
C |
B+ |
Under any condition |
* Output voltage varies with camshaft rotation.
Exhaust CMP Sensor
Visual inspection
CAUTION:
-
When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control.
1. Remove the exhaust CMP sensor..
2. Verify that there are no metal shavings on the exhaust CMP sensor.
-
If there is a malfunction, remove any metal shavings that are adhering.
Voltage inspection
CAUTION:
-
When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control.
-
If the wiring harnesses or waterproof connectors are damaged, water penetrating the connector will cause a sensor malfunction. To prevent this, be careful not to damage wiring harnesses or waterproof connectors.
1. Idle the engine.
2. Measure the exhaust CMP sensor output voltage using the oscilloscope.
-
If not as specified, replace the exhaust CMP sensor..
|
Terminal |
Voltage (V) |
Condition |
|
A |
Above 4.8 |
High output* |
|
Below 0.8 |
Low output* |
|
|
B |
Below 1.0 |
Under any condition |
|
C |
B+ |
Under any condition |
* Output voltage varies with camshaft rotation.
Air Fuel Ratio (A/F) Sensor
Purpose/Function
Detects the oxygen concentration (all-range air/fuel ratio) in the exhaust
gas as basic information for mainly determining the fuel injection amount.
Detects the oxy ...
Camshaft Position (CMP) Sensor Removal/Installation
CAUTION:
When replacing the CMP sensor, make sure there is no foreign material on
it such as metal shavings. If it is installed with foreign material, the sensor
output signal will malfu ...
Other materials:
Front Frame (Rear) Installation [Panel Replacement]
Symbol Mark
Installation Procedure
1. When installing new parts, measure and adjust the body as necessary to conform
with standard dimensions.
2. Drill holes for the plug welding before installing the new parts.
3. After temporarily installing new parts, make sure the related parts fit p ...
Dashboard Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Windshield wiper arm and blade.
b. Cowl grille.
c. Windshield wiper motor.
d. Front scuff plate.
e. Front side trim.
f. Glove compartment.
g. Dashboard under cover.
h. Decoration panel.
i. Center panel. ...
Power Outer Mirror
Outline
The power outer mirror adjusts the outer mirror glass position up/down and
left/right using the up/down adjustment motor and, left/right adjustment motor.
The up/down adjustment motor and, left/right adjustment motor turns clockwise
(down/right direction) or counterclock ...
